Red blood cells. You cannot be identified by the red blood cells that you leave behind. The tricky part is leaving only red blood cells.
Red blood cells ar unique in that they lose their nucleus and their DNA. The red blood cells demonstrate that the DNA is not essential for all cells to function. In cell cycles, the DNA is taken off line to be duplicated and packed into condensed chromosomes. The protein grid runs that show leading to two daughter cells. The red blood cells live off their protein grid.
The DNA is more like the hard drive of the cell, that has all the cell's data. The protein grid and water is more like the CPU that operates the hard drive using equilibrium and enzyme complexes. With red blood cells, because its O2 and CO2 exchange task is fairly simple, once the hard drive data is translated to the proteins needed to support this function; quality and quantity, there is not much need for the DNA hard drive. The protein motherboard has its own firmware memory; muscle, while the DNA is more like software.
Male and female gamete cells, which are used for sexual reproduction, reduce their internal DNA to half, to set the stage for fertilization. In essence, they go half way to the extreme state of the red blood cells and use only half the hard drive. This change has to do with needed changes in configurational potential. DNA dissolved in the cell's water has a significant impact on the cell's aqueous potential, which in turn impacts the protein grid. If we remove all or half the DNA, the cell's water potential changes, due to the size of the DNA and the loss of its impact. This leaves behind a different configurational equilibrium goal in the protein grid, which in both cases sets the stage for their unique activity.
The protein grid is also how cellular differentiation is maintained. All cells in our body begin their life using the same DNA hard drive. However, each differentiated cells uses just that parts of the data on that hard drive, that makes them unique. The protein grid reflects a configurational equilibrium with the differentiated aspects of the DNA hard drive. Even when the DNA is taken off line for differentiated cell cycles, once the DNA returns, the protein gird causes this same equilibrium to reform again, as DNA is unpacks, since one implies the other. This is also a water based equilibrium that involves enzyme complexes.
Stem cells are more like a moving or dynamic equilibrium. In the case of a fertilized ovum, when it regains full DNA, this starts to alter the equilibrium of the protein grid that had been set up to reflect half DNA. Things begin to shuffle and the mother cells divides many times. It is the attachment to the uterus wall, to gain access to the blood supply, which forces a larger change in external equilibrium, which alters the protein grid, from outside, which then alters the DNA differentiation. As the precursors of nervous tissue form, this adds an opposing potential that helps to fine tune the differentiations based on the local ratio of circulatory to nerve tissue.
Neurons are unique cells in that after a certain age they stop replicating. They are like eternal cells. By being at the top nervous system their impact on cellular differentiation control is to inhibit cell cycles, while the food in the blood supply promotes cells cycles. If you cut your finger, nerves are cut and their inhibitory action stops. This causes new skins cells to replicate and grow along with new nerve endings. Once these balance, the replication stops.
Cancer is also a dynamic equilibrium condition that breaks away from nerve control while maintaining a blood supply. This can cause very fast replication with little control. In the future, we might be able to ping the nervous system to see loose ends vulnerable to loss of control.
This all begins with water and the organics and the water and oil effect. The protein gird reflects proteins that have been minimized by the water to minimize the water's potential. This happens to individual protein and to protein groups, to form a protein gradient from the cell membrane to the DNA. The DNA is one pole and the cell membrane is the other. The rest are in the middle; read and write.